55049057 has 4 divisors (see below), whose sum is σ = 62913216. Its totient is φ = 47184900.

The previous prime is 55049053. The next prime is 55049083. The reversal of 55049057 is 75094055.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 55049057 - 2² = 55049053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55049053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3932069 + ... + 3932082.

It is an arithmetic number, because the mean of its divisors is an integer number (15728304).

Almost surely, 2^55049057 is an apocalyptic number.

It is an amenable number.

55049057 is a deficient number, since it is larger than the sum of its proper divisors (7864159).

55049057 is an equidigital number, since it uses as much as digits as its factorization.

55049057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7864158.

The product of its (nonzero) digits is 31500, while the sum is 35.

The square root of 55049057 is about 7419.5051721796. The cubic root of 55049057 is about 380.4082800148.

The spelling of 55049057 in words is "fifty-five million, forty-nine thousand, fifty-seven".